Global Patent Index - EP 4231236 A1

EP 4231236 A1 20230823 - A SYSTEM AND METHOD FOR TISSUE ANALYSIS USING REMOTE PPG

Title (en)

A SYSTEM AND METHOD FOR TISSUE ANALYSIS USING REMOTE PPG

Title (de)

SYSTEM UND VERFAHREN ZUR GEWEBEANALYSE UNTER VERWENDUNG ENTFERNTER PPG

Title (fr)

SYSTÈME ET PROCÉDÉ D'ANALYSE TISSULAIRE À L'AIDE DE PPG À DISTANCE

Publication

EP 4231236 A1 20230823 (EN)

Application

EP 22157440 A 20220218

Priority

EP 22157440 A 20220218

Abstract (en)

A PPG imaging system and method is provided for processing 3D images to derive remote PPG signals. A surface mesh of a region of interest is created from each of a set of the 3D images. The surface meshes are matched to each other using mesh transformations thereby providing motion compensation. A remote PPG signal is then obtained from each of a set of mesh locations of the matched surface meshes, thereby to derive a set of PPG signals. A perfusion map and/or a PPG delay map may be obtained from the set of PPG signals.

IPC 8 full level

G06T 7/246 (2017.01); G06T 7/30 (2017.01)

CPC (source: EP)

G06T 7/246 (2016.12); G06T 7/30 (2016.12); G06T 2207/10016 (2013.01); G06T 2207/10021 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/10068 (2013.01); G06T 2207/30028 (2013.01); G06T 2207/30076 (2013.01); G06T 2207/30104 (2013.01)

Citation (applicant)

  • EP 20214955 A 20201217
  • LAI MSHAN CCIUHU-PIJLMAN CIZAMIS ML: "2019 IEEE 16th International Symposium on Biomedical Imaging (ISBI 2019", 8 April 2019, IEEE, article "Perfusion monitoring by contactless photoplethysmography imaging", pages: 1778 - 1782
  • LAI MDICORATO CSDE WILD MVERBAKEL FSHULEPOV SGROEN JNOTTEN MLUCASSEN GVAN SAMBEEK MRHENDRIKS BH: "Evaluation of a non-contact Photo-Plethysmographic Imaging (iPPG) system for peripheral arterial disease assessment, Medical Imaging 2021", BIOMEDICAL APPLICATIONS IN MOLECULAR, STRUCTURAL, AND FUNCTIONAL IMAGING, vol. 11600, 15 February 2021 (2021-02-15), pages 116000F
  • CHANG WZWICKER M: "Computer Graphics Forum", vol. 27, July 2008, BLACKWELL PUBLISHING LTD, article "Deformable 3D shape registration based on local similarity transforms", pages: 1459 - 1468
  • RAVIV DBRONSTEIN MMBRONSTEIN AMKIMMEL R: "Volumetric heat kernel signatures", PROCEEDINGS OF THE ACM WORKSHOP ON 3D OBJECT RETRIEVAL, 25 October 2010 (2010-10-25), pages 39 - 44, XP058351557, DOI: 10.1145/1877808.1877817
  • IKEMOTO LGELFAND NLEVOY M: "Fourth International Conference on 3-D Digital Imaging and Modeling, 2003. 3DIM 2003. Proceedings", 6 October 2003, IEEE, article "A hierarchical method for aligning warped meshes", pages: 434 - 441

Citation (search report)

  • [IY] NAGAMATSU GENKI ET AL: "PPG3D: Does 3D head tracking improve camera-based PPG estimation?", 2020 42ND ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE & BIOLOGY SOCIETY (EMBC), IEEE, 20 July 2020 (2020-07-20), pages 1194 - 1197, XP033816064, DOI: 10.1109/EMBC44109.2020.9176065
  • [A] BESL P J ET AL: "A METHOD FOR REGISTRATION OF 3-D SHAPES", IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, IEEE COMPUTER SOCIETY, USA, vol. 14, no. 2, 1 February 1992 (1992-02-01), pages 239 - 256, XP000248481, ISSN: 0162-8828, DOI: 10.1109/34.121791
  • [YD] LAI MARCO ET AL: "Evaluation of a non-contact Photo-Plethysmographic Imaging (iPPG) system for peripheral arterial disease assessment", MEDICAL IMAGING 2021: BIOMEDICAL APPLICATIONS IN MOLECULAR, STRUCTURAL, AND FUNCTIONAL IMAGING, 15 February 2021 (2021-02-15), pages 12, XP055938773, ISBN: 978-1-5106-4030-6, DOI: 10.1117/12.2580640
  • [A] FOULADI SEYYED HAMED ET AL: "Extracting remote photoplethysmogram signal from endoscopy videos for vessel and capillary density recognition", 2016 38TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), IEEE, 16 August 2016 (2016-08-16), pages 227 - 230, XP032979135, DOI: 10.1109/EMBC.2016.7590681
  • [A] ZHANG CHEN ET AL: "Real-time multimodal 3D imaging system for remote estimation of vital signs", ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND ULTRASPECTRAL IMAGERY XIX - PROCEEDINGS OF SPIE, SPIE, US, vol. 11785, 20 June 2021 (2021-06-20), pages 117850F - 117850F, XP060144339, ISSN: 0277-786X, ISBN: 978-1-5106-4548-6, DOI: 10.1117/12.2592660

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4231236 A1 20230823

DOCDB simple family (application)

EP 22157440 A 20220218